The research controlled for differences among the vacationers and those who hadn’t taken a trip, including income level, stress and education.

此项研究受限于参加了旅行的休假者和那些没有去旅行的休假者的不同，包括收入水平，压力和教育程度的不同。

youdao

The research controlled for differences among the vacationers and those who hadn't taken a trip, including income level, stress and education. However, Mr.

此项研究受限于参加了旅行的休假者和那些没有去旅行的休假者的不同，包括收入水平，压力和教育程度的不同。

youdao

There is ample evidence that social factors, including education, employment status, income level, gender and ethnicity have a marked influence on how healthy a person is.

大量证据证明，个人的健康程度如何在很大程度上受到社会因素的左右，包括教育、就业状况、收入水平、性别和种族。

youdao

This is income from almost all sources (including tax-exempt bonds, for example), reduced by income taxes and by an allowance for subsistence-level living.

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